Scarbrough, L. 1990. Letter to Bob Sivinski regarding locations for three species, ^Coryphantha sneedii, ^Oenothera organensis, and ^Peniocereus greggii. 3 pages included with map.

Buchanan, J. B., R. W. Lundquist, and K. B. Aubry. 1990. Winter populations of Douglas' squirrels in different-aged Douglas-fir forests. J. Wildl. Manage. 54:577-581.

Fishman, M. S., and M. Scheibel. 1990. Osprey productivity on Long Island 1978-1987: a decade of stabilization. Kingbird 40:2-9.

Iverson, J. B. 1990. Nesting and parental care in the mud turtle, Kinosternon flavescens. Can. J. Zool. 68:230-233.

Kuyt, E. 1990. Whooping crane numbers in 1989 recover from 1988 setback. Alberta Naturalist 20:49-52.

Rawinski, T. J., and B. P. Lapin. 1990. Some effects of beaver flooding on rare swamp birch (Betula pumila L.) vegetation in Connecticut: 1984-1987. Pages 244-247 in: Ecosystem management: are species and significant habitats. New York State Museum Bullet

Waples, R. S. 1990b. Conservation genetics of Pacific salmon. III. Estimating effective population size. Journal of Heredity 81:277-289.

Beedy, E. C., R. Duke, and L.R. Mewaldt. 1990. Black tern. In: D. C. Zeiner, W. F. Laudenslayer, Jr., K.E. Mayer, and M. White, eds. California's wildlife vol. 2: birds. California Statewide Wildlife Habitat Relationships System, State of California, The

Colwell, M.A., and L.W. Oring. 1990. Nest site characteristics of prairie shorebirds. Canadian Journal of Zoology 68:297-302.

Ginaven, J. 1990. Using decoys to attract purple martins. Purple Martin Update 2(3):26-27.

Knox, A.G. 1990. The sympatric breeding of common and Scottish crossbills Loxia curvirostra and L. scotia and the evolution of crossbills. Ibis 132:454-466.

Paulissen, M. A., and T. M. Buchanan. 1990. Geographic distribution. HEMIDACTYLUS TURCICUS. Herpetological Review 21:22.

Sieg, C. H., and D. M. Becker. 1990. Nest-site habitat selected by merlins in southeastern Montana. Condor 92:688-694.

Wilcove, D. S. 1990. Forest fragmentation as a wildlife management issue in the eastern United States. Pages 1-5 in R. M. DeGraff, and W. M. Healy (editors). Is Forest Fragmentation a Management Issue in the Northeast? Northeastern Forest Experiment Stati

U.S. Fish and Wildlife Service (USFWS). 1990. Recovery plan for the interior population of the least tern (Sterna antillarum). USFWS, Twin Cities, Minnesota. 90 pp.

Castetter, R. 1990. Field survey to Cottonwood Grove on July 5, 1990

Dulin, G. S. 1990. 1990 Summary Report of the Forster's and black tern breeding survey of the Minnesota Valley National Wildlife Refuge and Vicinity. unpublished report to the Minnesota Valley National Wildlife Refuge and the Minnesota Nongame Wildlife Pr

Orr, M. V. 1990. Data sheet of independent survey of Pediocactus papyracanthus with map.

Berna, H. J. 1990. Seven bat species from the Kaibab Plateau, Arizona, with a new record of Euderma maculatum. Southwest. Nat. 35:354-356.

Janecek, L.L. 1990. Genic variation in the Peromyscus truei group (Rodentia cricetidae). J. Mamm. 71(3):301-308.

McClenaghan, L. R., Jr., J. Berger, and H. D. Truesdale. 1990. Founding lineages and genetic variability in plains bison (BISON BISON) from Badlands National Park, South Dakota. Conservation Biology 4:285-289.

Petersen, M. R. 1990. Nest-site selection by emperor geese and cackling Canada geese. Wilson Bull. 102:413-426.

Titus, K., and M. R. Fuller. 1990. Recent trends in counts of migrant hawks from northeastern North America. Journal of Wildlife Management 54:463-470.

Sealy, S. G., editor. 1990. Auks at sea. Western Foundation of Vertebrate Zoology, Studies in Avian Biology No. 14. vi + 180 pp.

Daly, L. Parker, M. (1990) 1190 Mexican Spotted Owl Inventory Form. Sandia Ranger District, Cibola National Forest, USFS. 20 p.

Lincoln National Forest. 1990. Mexican Spotted Owl inventory forms.

Ainley, D. G., and R. J. Boekelheide, editors. 1990. Seabirds of the Farallon Islands. Stanford University Press, Stanford, CA.

Lightfoot & Muldavin Associates. 1990. Final report of a biological survey for the proposed Aerial Cable Test Capability preliminary draft Environmental Impact Statement. 17 September 1990. 123 pp.

Conway, C. J. 1990. Seasonal changes in movements and habitat use by three sympatric species of rails. M.Sc.thesis, University of Wyoming, Laramie.

Unknown (1990) Field notebook pertaining to Oncorhynchus clarkii virginalis in Rito Angostura. Retrieved from Regional Office, USFS. 5 p.

Avise, J. C., W. S. Nelson, J. Arnold, R. K. Koehn, G. C. Williams and V. Thorsteinsson. 1990. The evolutionary genetic status of Icelandic eels. Evolution 44:1254-1262.

DeBruin, E. 1990. Field survey to Organ Mts, Long Canyon for Perityle Cernua Sept 5, 1990.

Betts, B. J. 1990. Geographic distribution and habitat preferences of Washington ground squirrels (Spermophilus washingtoni). Northwestern Naturalist 71:27-37.

Engstrom, R. T., G. S. Butcher, and J. D. Lowe. 1990. Population trends in the least tern (Sterna antillarum) from Maine to Virginia: 1975-1986. Pages 130-138 in J. R. Sauer and S. Droege, editors. Survey designs and statistical methods for the estimation

Kee, S. N. 1990. Old-growth mixed-coniferous red fir forest transition. Journal of Field Ornithology (Supplement) 61:56.

Petter, S.C., D.B. Miles, and M.M. White. 1990. Genetic evidence of mixed reproductive strategy in a monogamous bird. Condor 92:702-708.

Walter, H. S. 1990. Small viable population: the red-tailed hawk of Socorro Island. Conservation Biology 4:441-443.

Dunmire, W. 1990. Plant collection records 1990. 6 p.

Schulke (1990) Collected 1990 Mexican Spotted Owl Daytime Follow-up Visit Forms. Retrieved from Silver City Ranger District, Gila National Forest, USFS. 179 p.

Apa, A. D., D. W. Uresk, and R. L. Linder. 1990. Black-tailed prairie dog populations one year after treatment with rodenticides. Great Basin Nat. 50:107-113.

Bucher, E. H. 1990. The influence of changes in regional land-use patterns on ZENAIDA dove populations. Pages 291-303 in J. Pinowski and J. D. Summers-Smith, editors. Granivorous birds in the agricultural landscape. Polish Scientific Publisher, Warszawa.

Frazer, C., J. R. Longcore, and D. G. McAuley. 1990a. Habitat use by postfledging American black ducks in Maine and New Brunswick. Journal of Wildlife Management 54:451-459.

Johnson, G., and R. E. Chambers. 1990. Response to conspecific, roadside playback recordings: an index of red-shouldered hawk breeding density. Pages 71-76 in Mitchell et al., eds. Ecosystem management: rare species and significant habitats. New York Stat

Lee, D. S., and W. R. Spofford. 1990. Nesting of golden eagles in the central and southern Appalachians. Wilson Bull. 102:693-698.

Ritchison, G., and M. K. Omer. 1990. Winter behavior of Northern Cardinals (CARDINALIS CARDINALIS). Transactions of the Kentucky Academy of Science 51:145-153.

Wiens, J. A., and B. Van Horne. 1990. Comparisons of the behavior of sage and Brewer's sparrows in shrubsteppe habitats. Condor 92:264-266.

Benson, R. H., and K. L. P. Benson. 1990. Estimated size of black-capped vireo population in northern Coahuila, Mexico. Condor 92:777-9.

Hendrickson, D. A. 1990. Non-game Research Biologist. Arizona Game and Fish Department, Phoenix, AZ.

Conover, M. R. 1990. Reducing mammalian predation on eggs by using a conditioned taste aversion to deceive predators. J. Wildl. Manage. 54:360-365.

Gray, M. T. 1990. Denver's urban beavers--a gnawing problem. Colorado Outdoors 39(1):27-29.

Lee, T. E., Jr. 1990. Geographic distribution of the cytotypes of Chaetodipus nelsoni canescens (Rodentia: Heteromyidae). Southwest. Nat. 454-455.

Petit, L. J., et al. 1990. Intersexual and temporal variation in foraging ecology of prothonotary warblers during the breeding season. Auk 107:133-145. See also Auk 107:146-152.

Siegel, R.S. and J.H. Brock. 1990. Germination requirements of key southwestern woody riparian species. Desert Plants 10:3-8.

Zicus, M. C. 1990. Nesting biology of hooded mergansers using nest boxes. J. Wildl. Manage. 54:637-643.

Gibbons, J. W. 1990. Life history and ecology of the slider turtle. Smithsonian Inst. Press, Washington, D.C. xiv + 368 pp.

Castetter, R. 1990. Field survey to Gray Ranch - Cottonwood Grove. 5, July, 1990.

Mehlhop, P. 1990. Field notes from field notebook on animal survey of the Organ Mts, Ice canyon, Ft. Bliss, Sept 4, 1990.

Dunmire, W. W. 1990. An investigation of biological resources focusing on plant and animal communities with recommendations for future management actions, Biological Inventory, Dark Canyon ACEC, Carlsbad Resource Area. Prepared for BLM by TNC Field Office

Pagels, J. F. 1990. Water shrew study progress report. Report submitted to Virginia Deptartment of Game and Inland Fisheries, Richmond, Virginia. Unpublished.

Best, T. L., et al. 1990. Ammospermophilus interpres. Am. Soc. Mamm., Mammalian Species No. 365:1-6.